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Engine piston connecting rod assembly

A technology for pistons, connecting rods and engines, which is applied to piston rods, engine components, machines/engines, etc. It can solve problems such as failure to meet engine requirements, poor lubrication of connecting rods, and damage to bearing bushes, so as to reduce the risk of less pad holding and reduce The effect of small surface pressure and weight reduction

Inactive Publication Date: 2017-09-12
BRILLIANCE AUTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connecting rods in the current market are prone to poor lubrication, resulting in damage to the bearing bush, and serious cylinder scuffing
However, the existing piston and connecting rod structure cannot meet the needs of the engine market, and there is a risk of damage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The piston connecting rod assembly 1 of the engine adopted in the present embodiment comprises a piston head 1-1 and a connecting rod 7 with an air ring 2, an air ring 3 and an oil ring 4, and the connecting rod 7 connects with the piston head 1 through the piston pin 5. -1 are connected together, and the movement of the piston pin 5 in the pin hole 1-6 is controlled by a snap ring. Connecting rod 7 comprises connecting rod small end 7-3, connecting rod large end 7-5, connecting rod large end 7-8 and connecting rod small end 7-3 and connecting portion 7-2 and being arranged on connecting rod large end 7-5. The bearing bush 8 in the hole seat.

[0020] The structure of the connecting rod 7 in this embodiment is as follows: the connecting rod small head 7-3 is a wedge-shaped structure, and a funnel is arranged on the top of the connecting rod small head 7-3 (that is, on the outer wall of the hole seat of the connecting rod small head 7-3) shaped oil return hole 7-1; an a...

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PUM

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Abstract

The invention discloses an engine piston connecting rod assembly, and relates to the field of engine pistons. The engine piston connecting rod assembly adopts a wedge connecting rod structure and an inner cavity matched with the wedge structure, the stress area is increased, the face pressure of a movable piston hole and the piston head breaking risk are reduced, a lining ring is additionally arranged on the small end of a connecting rod, the lubricating amount and the lubricating area are increased, the wear between the connecting rod and the piston head is reduced, an oil way is added on the connecting portion of a connecting rod small end and a connecting rod large end, through the structure, the weight of the connecting rod is reduced, the lubricating oil can be sufficiently used, a bearing bush arranged on the connecting rod large end is lubricated, a positioning groove of the connecting rod large end is used, moving of the bearing bush is controlled, and risks of uneven bearing bush stress and bearing bush missing are reduced.

Description

technical field [0001] The invention relates to the field of engine pistons, in particular to an engine piston connecting rod assembly. Background technique [0002] At present, in the mechanical industry such as automobile engine, the piston connecting rod assembly includes four parts: piston, piston ring, piston pin and connecting rod group. Whether the structure is good or bad is related to the performance of the engine. When the piston is working, it not only slides down along the cylinder wall reciprocatingly under the action of direction-finding force, but also contacts with high-temperature gas. When the heat or heat load is higher, the thermal stress and thermal deformation will be greater. The failures that often occur during the working process of the piston include: cracks and ablation on the top, strain on the skirt, excessive wear or breakage of the ring groove, and cracks on the pin seat. [0003] The connecting rod group generally consists of a connecting rod...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02F3/00F16J7/00
CPCF02F3/00F16J7/00
Inventor 赵世来黄昌瑞李振华
Owner BRILLIANCE AUTO
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